dlls/msvcrt/tests/time.c

   1 /*
   2  * Unit test suite for time functions.
   3  *
   4  * Copyright 2004 Uwe Bonnes
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "wine/test.h"
  22 #include "winbase.h"
  23 #include "time.h"
  24
  25 #include <stdlib.h> /*setenv*/
  26 #include <stdio.h> /*printf*/
  27
  28 #define SECSPERDAY         86400
  29 #define SECSPERHOUR        3600
  30 #define SECSPERMIN         60
  31 #define MINSPERHOUR        60
  32 #define HOURSPERDAY        24
  33
  34 static void test_gmtime(void)
  35 {
  36     time_t gmt = (time_t)NULL;
  37     struct tm* gmt_tm = gmtime(&gmt);
  38     if(gmt_tm == 0)
  39         {
  40             ok(0,"gmtime() error\n");
  41             return;
  42         }
  43     ok(((gmt_tm->tm_year == 70) && (gmt_tm->tm_mon  == 0) && (gmt_tm->tm_yday  == 0) &&
  44         (gmt_tm->tm_mday ==  1) && (gmt_tm->tm_wday == 4) && (gmt_tm->tm_hour  == 0) &&
  45         (gmt_tm->tm_min  ==  0) && (gmt_tm->tm_sec  == 0) && (gmt_tm->tm_isdst == 0)),
  46        "Wrong date:Year %4d mon %2d yday %3d mday %2d wday %1d hour%2d min %2d sec %2d dst %2d\n",
  47        gmt_tm->tm_year, gmt_tm->tm_mon, gmt_tm->tm_yday, gmt_tm->tm_mday, gmt_tm->tm_wday,
  48        gmt_tm->tm_hour, gmt_tm->tm_min, gmt_tm->tm_sec, gmt_tm->tm_isdst);
  49
  50 }
  51
  52 static void test_mktime(void)
  53 {
  54     TIME_ZONE_INFORMATION tzinfo;
  55     DWORD res =  GetTimeZoneInformation(&tzinfo);
  56     struct tm my_tm, sav_tm;
  57     time_t nulltime, local_time;
  58     char TZ_env[256];
  59     int secs;
  60
  61     ok (res != TIME_ZONE_ID_INVALID, "GetTimeZoneInformation failed\n");
  62     /* Bias may be positive or negative, to use offset of one day */
  63     secs= SECSPERDAY - tzinfo.Bias * SECSPERMIN;
  64     my_tm.tm_mday = 1 + secs/SECSPERDAY;
  65     secs = secs % SECSPERDAY;
  66     my_tm.tm_hour = secs / SECSPERHOUR;
  67     secs = secs % SECSPERHOUR;
  68     my_tm.tm_min = secs / SECSPERMIN;
  69     secs = secs % SECSPERMIN;
  70     my_tm.tm_sec = secs;
  71
  72     my_tm.tm_year = 70;
  73     my_tm.tm_mon  =  0;
  74     my_tm.tm_isdst=  0;
  75
  76     sav_tm = my_tm;
  77
  78     local_time = mktime(&my_tm);
  79     ok(((DWORD)local_time == SECSPERDAY), "mktime returned %u, expected %u\n",
  80         (DWORD)local_time, SECSPERDAY);
  81     /* now test some unnormalized struct tm's */
  82     my_tm = sav_tm;
  83     my_tm.tm_sec += 60;
  84     my_tm.tm_min -= 1;
  85     local_time = mktime(&my_tm);
  86     ok(((DWORD)local_time == SECSPERDAY), "Unnormalized mktime returned %u, expected %u\n",
  87         (DWORD)local_time, SECSPERDAY);
  88     ok( my_tm.tm_year == sav_tm.tm_year && my_tm.tm_mon == sav_tm.tm_mon &&
  89         my_tm.tm_mday == sav_tm.tm_mday && my_tm.tm_hour == sav_tm.tm_hour &&
  90         my_tm.tm_sec == sav_tm.tm_sec,
  91             "mktime returned %2d-%02d-%02d %02d:%02d expected %2d-%02d-%02d %02d:%02d\n",
  92             my_tm.tm_year,my_tm.tm_mon,my_tm.tm_mday,
  93             my_tm.tm_hour,my_tm.tm_sec,
  94             sav_tm.tm_year,sav_tm.tm_mon,sav_tm.tm_mday,
  95             sav_tm.tm_hour,sav_tm.tm_sec);
  96     my_tm = sav_tm;
  97     my_tm.tm_min -= 60;
  98     my_tm.tm_hour += 1;
  99     local_time = mktime(&my_tm);
 100     ok(((DWORD)local_time == SECSPERDAY), "Unnormalized mktime returned %u, expected %u\n",
 101         (DWORD)local_time, SECSPERDAY);
 102     ok( my_tm.tm_year == sav_tm.tm_year && my_tm.tm_mon == sav_tm.tm_mon &&
 103         my_tm.tm_mday == sav_tm.tm_mday && my_tm.tm_hour == sav_tm.tm_hour &&
 104         my_tm.tm_sec == sav_tm.tm_sec,
 105             "mktime returned %2d-%02d-%02d %02d:%02d expected %2d-%02d-%02d %02d:%02d\n",
 106             my_tm.tm_year,my_tm.tm_mon,my_tm.tm_mday,
 107             my_tm.tm_hour,my_tm.tm_sec,
 108             sav_tm.tm_year,sav_tm.tm_mon,sav_tm.tm_mday,
 109             sav_tm.tm_hour,sav_tm.tm_sec);
 110     my_tm = sav_tm;
 111     my_tm.tm_mon -= 12;
 112     my_tm.tm_year += 1;
 113     local_time = mktime(&my_tm);
 114     ok(((DWORD)local_time == SECSPERDAY), "Unnormalized mktime returned %u, expected %u\n",
 115         (DWORD)local_time, SECSPERDAY);
 116     ok( my_tm.tm_year == sav_tm.tm_year && my_tm.tm_mon == sav_tm.tm_mon &&
 117         my_tm.tm_mday == sav_tm.tm_mday && my_tm.tm_hour == sav_tm.tm_hour &&
 118         my_tm.tm_sec == sav_tm.tm_sec,
 119             "mktime returned %2d-%02d-%02d %02d:%02d expected %2d-%02d-%02d %02d:%02d\n",
 120             my_tm.tm_year,my_tm.tm_mon,my_tm.tm_mday,
 121             my_tm.tm_hour,my_tm.tm_sec,
 122             sav_tm.tm_year,sav_tm.tm_mon,sav_tm.tm_mday,
 123             sav_tm.tm_hour,sav_tm.tm_sec);
 124     my_tm = sav_tm;
 125     my_tm.tm_mon += 12;
 126     my_tm.tm_year -= 1;
 127     local_time = mktime(&my_tm);
 128     ok(((DWORD)local_time == SECSPERDAY), "Unnormalized mktime returned %u, expected %u\n",
 129         (DWORD)local_time, SECSPERDAY);
 130     ok( my_tm.tm_year == sav_tm.tm_year && my_tm.tm_mon == sav_tm.tm_mon &&
 131         my_tm.tm_mday == sav_tm.tm_mday && my_tm.tm_hour == sav_tm.tm_hour &&
 132         my_tm.tm_sec == sav_tm.tm_sec,
 133             "mktime returned %2d-%02d-%02d %02d:%02d expected %2d-%02d-%02d %02d:%02d\n",
 134             my_tm.tm_year,my_tm.tm_mon,my_tm.tm_mday,
 135             my_tm.tm_hour,my_tm.tm_sec,
 136             sav_tm.tm_year,sav_tm.tm_mon,sav_tm.tm_mday,
 137             sav_tm.tm_hour,sav_tm.tm_sec);
 138     /* now a bad time example */
 139     my_tm = sav_tm;
 140     my_tm.tm_year -= 1;
 141     local_time = mktime(&my_tm);
 142     ok((local_time == -1), "(bad time) mktime returned %d, expected -1\n", (int)local_time);
 143
 144     my_tm = sav_tm;
 145     /* TEST that we are independent from the TZ variable */
 146     /*Argh, msvcrt doesn't have setenv() */
 147     _snprintf(TZ_env,255,"TZ=%s",(getenv("TZ")?getenv("TZ"):""));
 148     putenv("TZ=GMT");
 149     nulltime = mktime(&my_tm);
 150     ok(((DWORD)nulltime == SECSPERDAY),"mktime returned 0x%08x\n",(DWORD)nulltime);
 151     putenv(TZ_env);
 152 }
 153
 154 static void test_localtime(void)
 155 {
 156     TIME_ZONE_INFORMATION tzinfo;
 157     DWORD res =  GetTimeZoneInformation(&tzinfo);
 158     time_t gmt = (time_t)(SECSPERDAY + tzinfo.Bias * SECSPERMIN);
 159
 160     char TZ_env[256];
 161     struct tm* lt;
 162
 163     ok (res != TIME_ZONE_ID_INVALID, "GetTimeZoneInformation failed\n");
 164     lt = localtime(&gmt);
 165     ok(((lt->tm_year == 70) && (lt->tm_mon  == 0) && (lt->tm_yday  == 1) &&
 166         (lt->tm_mday ==  2) && (lt->tm_wday == 5) && (lt->tm_hour  == 0) &&
 167         (lt->tm_min  ==  0) && (lt->tm_sec  == 0) && (lt->tm_isdst == 0)),
 168        "Wrong date:Year %d mon %d yday %d mday %d wday %d hour %d min %d sec %d dst %d\n",
 169        lt->tm_year, lt->tm_mon, lt->tm_yday, lt->tm_mday, lt->tm_wday, lt->tm_hour,
 170        lt->tm_min, lt->tm_sec, lt->tm_isdst);
 171
 172     _snprintf(TZ_env,255,"TZ=%s",(getenv("TZ")?getenv("TZ"):""));
 173     putenv("TZ=GMT");
 174     lt = localtime(&gmt);
 175     ok(((lt->tm_year == 70) && (lt->tm_mon  == 0) && (lt->tm_yday  == 1) &&
 176         (lt->tm_mday ==  2) && (lt->tm_wday == 5) && (lt->tm_hour  == 0) &&
 177         (lt->tm_min  ==  0) && (lt->tm_sec  == 0) && (lt->tm_isdst == 0)),
 178        "Wrong date:Year %d mon %d yday %d mday %d wday %d hour %d min %d sec %d dst %d\n",
 179        lt->tm_year, lt->tm_mon, lt->tm_yday, lt->tm_mday, lt->tm_wday, lt->tm_hour,
 180        lt->tm_min, lt->tm_sec, lt->tm_isdst);
 181     putenv(TZ_env);
 182
 183     /* June 22 */
 184     gmt += 201 * SECSPERDAY;
 185     lt = localtime(&gmt);
 186     gmt += (lt->tm_isdst ? tzinfo.DaylightBias : tzinfo.StandardBias) * SECSPERMIN;
 187     lt = localtime(&gmt);
 188     ok(((lt->tm_year == 70) && (lt->tm_mon  == 6) && (lt->tm_yday  == 202) &&
 189         (lt->tm_mday == 22) && (lt->tm_wday == 3) && (lt->tm_hour  == 0) &&
 190         (lt->tm_min  ==  0) && (lt->tm_sec  == 0)),
 191        "Wrong date:Year %d mon %d yday %d mday %d wday %d hour %d min %d sec %d dst %d\n",
 192        lt->tm_year, lt->tm_mon, lt->tm_yday, lt->tm_mday, lt->tm_wday, lt->tm_hour,
 193        lt->tm_min, lt->tm_sec, lt->tm_isdst);
 194 }
 195
 196 static void test_strdate(void)
 197 {
 198     char date[16], * result;
 199     int month, day, year, count, len;
 200
 201     result = _strdate(date);
 202     ok(result == date, "Wrong return value\n");
 203     len = strlen(date);
 204     ok(len == 8, "Wrong length: returned %d, should be 8\n", len);
 205     count = sscanf(date, "%02d/%02d/%02d", &month, &day, &year);
 206     ok(count == 3, "Wrong format: count = %d, should be 3\n", count);
 207 }
 208
 209 static void test_strtime(void)
 210 {
 211     char time[16], * result;
 212     int hour, minute, second, count, len;
 213
 214     result = _strtime(time);
 215     ok(result == time, "Wrong return value\n");
 216     len = strlen(time);
 217     ok(len == 8, "Wrong length: returned %d, should be 8\n", len);
 218     count = sscanf(time, "%02d:%02d:%02d", &hour, &minute, &second);
 219     ok(count == 3, "Wrong format: count = %d, should be 3\n", count);
 220 }
 221
 222 static void test_wstrdate(void)
 223 {
 224     wchar_t date[16], * result;
 225     int month, day, year, count, len;
 226     wchar_t format[] = { '%','0','2','d','/','%','0','2','d','/','%','0','2','d',0 };
 227
 228     result = _wstrdate(date);
 229     ok(result == date, "Wrong return value\n");
 230     len = wcslen(date);
 231     ok(len == 8, "Wrong length: returned %d, should be 8\n", len);
 232     count = swscanf(date, format, &month, &day, &year);
 233     ok(count == 3, "Wrong format: count = %d, should be 3\n", count);
 234 }
 235
 236 static void test_wstrtime(void)
 237 {
 238     wchar_t time[16], * result;
 239     int hour, minute, second, count, len;
 240     wchar_t format[] = { '%','0','2','d',':','%','0','2','d',':','%','0','2','d',0 };
 241
 242     result = _wstrtime(time);
 243     ok(result == time, "Wrong return value\n");
 244     len = wcslen(time);
 245     ok(len == 8, "Wrong length: returned %d, should be 8\n", len);
 246     count = swscanf(time, format, &hour, &minute, &second);
 247     ok(count == 3, "Wrong format: count = %d, should be 3\n", count);
 248 }
 249
 250 START_TEST(time)
 251 {
 252     test_gmtime();
 253     test_mktime();
 254     test_localtime();
 255     test_strdate();
 256     test_strtime();
 257     test_wstrdate();
 258     test_wstrtime();
 259 }